Simulate Prisoners Dilemma

This tool simulates an iterated Prisoners Dilemma match between the user and a fixed opponent archetype to test game-theoretic counter strategies and robustness. It accepts opponentArchetype (string enum: Aggressor, Neutral, Idealist), rounds (integer, 1-100), and an optional userStrategy text description as a payload describing the intended policy. The worker must generate only JSON that models per-round choices and summary metrics, and the response must strictly validate against the system-provided structured output schema (auto-produced, not supplied here).